Artwork at WDW

Hey everyone! Was doing some research into some of the various artwork of queue lines around WDW, (specifically Soarin' for the time being). I'm wanting to find out where the imagineers and artists got the inspiration for the artwork lining the area in and around Soarin. Some people have suggested Eyvind Earle (Sleeping Beauty), or Mary Blair (It's a Small World) because of the similarities in shapes and colors. I'd love to look into this more however I'm not entirely sure where to start or who to talk to. I thought of just asking CM's in a couple weeks when I get to WDW, but I didnt know if there was a better way to go about this.